Mesh Ellipsoid within cylinder

Coreform Cubit Meshing
#1

Hello,

I want to create a geometry such that I have a solid ellipsoidal region within a cylinder.

I am using the following script to make this geometry

reset
create surface ellipse major radius 1 minor radius 0.5 zplane
create surface rectangle width 5 height 5 zplane
webcut body 2 tool body 1
delete body 3
undo group begin
imprint body 1 2
merge body 1 2 group_results
undo group end
webcut body 1 2 with plane xplane
delete body 5 4
undo group begin
imprint body 1 2
merge body 1 2 group_results
undo group end
sweep surface 5 7 yaxis angle 360 merge
regularize vol all

If I am not wrong, this gives me an ellipsoid inside a cylinder.

I am unable to mesh the volume 1 which is ellipsoid using the command mesh volume 1.
It gives error. I want to map the domain with 8 noded brick elements only. Can anyone please help me how to do this ?

Error: Volume 1 (Volume 1) must have its meshing scheme explicitly specified:
it is not automatically mappable, submappable or sweepable.

#2

#Use symmetry and quarter the model to create sweepable volumes
webcut body all with plane zplane
webcut body all with plane xplane
del body 3 to 11

#core the model
compress
create Cylinder height 6 radius .25
rotate Volume 3 angle 90 about X include_merged
webcut body 1 2 with sheet extended from surface 10
del vol 3

#Copy reflect volumes
Volume all copy reflect x
Volume all copy reflect z

vol all size auto factor 1
merge all
mesh vol all